--help
Describe how to use the Closure Compiler Application.
--version
Print the Closure Compiler version to stderr.
--accept_const_keyword
Allow usage of const keyword.
--angular_pass
Generate $inject properties for AngularJS for functions annotated with @ngInject.
--charsetCHARSET
Specify CHARSET to be the input and output charset for all files. By default, we accept UTF-8 as input
and output US_ASCII.
--closure_entry_pointENTRYPOINT
Specify entry point ENTRYPOINT to the program. Must be goog.provide'd symbols. Any goog.provide'd
symbols that are not a transitive dependency of the entry points will be removed. Files without
goog.provides, and their dependencies, will always be left in. If any entry points are specified, then
the manage_closure_dependencies option will be set to true and all files will be sorted in dependency
order.
--common_js_entry_moduleMODULEFILE
Specify the root of your common JS dependency hierarchy to be MODULEFILE. Your main script.
--common_js_module_path_prefixPREFIX
Specify a path prefix PREFIX to be removed from CommonJS module names.
--compilation_levelLEVEL
Set the compilation level to LEVEL.
Values: WHITESPACE_ONLY, SIMPLE_OPTIMIZATIONS, ADVANCED_OPTIMIZATIONS.
--create_name_map_files
Specify that variable renaming and property renaming map files will be produced as {binary
name}_vars_map.out and {binary name}_props_map.out.
Note that this flag cannot be used in conjunction with either variable_map_output_file or
property_map_output_file.
--create_source_mapMAPFILE
Specify a source map file MAPFILE, mapping the generated source files back to the original source file
will be output to the specified path. The %outname% placeholder will expand to the name of the output
file that the source map corresponds to.
--debug
Enable debugging options.
--defineDEFINITION, --DDEFINITION, -DDEFINITION
Override the value of a variable annotated @define. The format of DEFINITION is <name>[=<val>], where
<name> is the name of a @define variable and <val> is a boolean, number, or a single-quot ed string
that contains no single quotes. If [=<val>] is omitted, the variable is marked true.
--externsEXTERNFILE
Specify that the file EXTERNFILE contains JavaScript externs.
You may specify this option multiple times to specify additional EXTERNFILE files.
--extra_annotation_nameTAGNAME
Specify TAGNAME to append to the whitelist of tag names in JSDoc.
You may specify this option multiple times to append additional TAGNAME values.
--flagfileFILE
Specify that FILE contains additional command-line options.
--formattingFORMATOPTION
Specifies the formatting option FORMATOPTION to apply to the output JS.
Values: PRETTY_PRINT, PRINT_INPUT_DELIMITER, SINGLE_QUOTES--generate_exports
Generates export code for those marked with @export.
--jsINFILE
Specify INFILE as an input filename.
You may specify this option multiple times to append additional INFILE names.
--js_output_fileOUTFILE
Specify OUTFILE as the primary output filename.
If not specified, output is written to stdout.
--jscomp_errorWARNCLASS
Make the named class of warnings WARNCLASS an error.
See WarningClasses, below, for the list of valid WARNCLASS names.
--jscomp_offWARNCLASS
Turn off the named class of warnings WARNCLASS.
See WarningClasses, below, for the list of valid WARNCLASS names.
--jscomp_warningWARNCLASS
Make the named class of warnings WARNCLASS a normal warning.
See WarningClasses, below, for the list of valid WARNCLASS names.
--language_inLANGSPEC
Specify the input sources conform to the language LANGSPEC.
Values: ECMASCRIPT3 (default), ECMASCRIPT5, ECMASCRIPT5_STRICT.
--logging_levelLEVEL
Specify LEVEL as the logging level (standard java.util. logging.Level values) for Compiler progress.
Does not control errors or warnings for the JavaScript code under compilation.
--manage_closure_dependencies
Automatically sort dependencies so that a file that goog.provides symbol X will always come before a
file that goog.requires symbol X. If an input provides symbols, and those symbols are never required,
then that input will not be included in the compilation.
--moduleMODULESPEC
Specify the JavaScript module specification MODULESPEC.
The format for MODULESPEC is <name>:<num-js-files>[:[<dep>,...][:]]]. Module names must be unique.
Each dep is the name of a module that this module depends on. Modules must be listed in dependency
order, and JS source files must be listed in the corresponding order. Where --module flags occur in
relation to --js flags is unimportant. Provide the value auto to trigger module creation from
CommonJSmodules.
--module_output_path_prefixPREFIX
Specify the filename prefix PREFIX for filenames of compiled JS modules. <module-name>.js will be
appended to this prefix. Directories will be created as needed. Use with --module.
--module_wrapperWRAPPER
Specify WRAPPER as output wrapper for a JavaScript module (optional).
The format of WRAPPER is <name>:<wrapper>. The module name must correspond with a module specified
using --module. The wrapper must contain %s as the code placeholder. The %basename% placeholder can
also be used to substitute the base name of the module output file.
--only_closure_dependencies
Only include files in the transitive dependency of the entry points (specified by
closure_entry_point). Files that do not provide dependencies will be removed. This supersedes
manage_closure_dependencies.
--output_manifestMANIFESTFILE
Prints out a list of all the files in the compilation to MANIFESTFILE.
If --manage_closure_dependencies is on, this will not include files that got dropped because they were
not required.
The %outname% placeholder expands to the JS output file. If you're using modularization, using
%outname% will create a manifest for each module.
--output_module_dependenciesDEPFILE
Prints out a JSON file DEPFILE of dependencies between modules.
--output_wrapperWRAPPER
Interpolate output into WRAPPER at the place denoted by the marker token %output%. Use marker token
%output|jsstring% to do js string escaping on the output.
--print_ast
Print a dot file describing the internal abstract syntax tree and exit.
--print_pass_graph
Print a dot file describing the passes that will get run and exit.
--print_tree
Print out the parse tree and exit.
--process_closure_primitives
Processes built-ins from the Closure library, such as goog.require(), goog.provide(), and
goog.exportSymbol().
--process_common_js_modules
Process CommonJS modules to a concatenable form.
--process_jquery_primitives
Processes built-ins from the JQuery library, such as jQuery.fn and jQuery.extend().
--property_map_input_fileMAPFILE
Specify MAPFILE as containing the serialized version of the property renaming map produced by a
previous compilation.
--property_map_output_fileMAPFILE
Save the serialized version of the property renaming map produced to MAPFILE.
--source_map_formatFORMAT
Product the source map in format FORMAT.
Values: V1, V2, V3, DEFAULT. DEFAULT produces V2.
--summary_detail_levelLEVEL
Specify the compilation summary detail level LEVEL.
Values: 0 (never print summary), 1 (print summary only if there are errors or warnings), 2 (print
summary if the 'checkTypes' diagnostic group is enabled, see --jscomp_warning), 3 (always print
summary). The default level is 1.
--third_party
Check source validity but do not enforce Closure style rules and conventions.
--transform_amd_modules
Transform AMD to CommonJS modules.
--translations_fileTRANSFILE
Specify TRANSFILE as the source of translated messages. Currently only supports XTB.
--translations_projectPROJECT
Scope all translations to the specified project.
When specified, use different message ids so that messages in different projects can have different
translations.
--use_only_custom_externs
Specifies that the default externs should be excluded.
--use_types_for_optimization
Experimental: perform additional optimizations based on available information. Inaccurate type
annotations may result in incorrect results.
--variable_map_input_fileMAPFILE
Specify MAPFILE as containing the serialized version of the variable renaming map produced by a
previous compilation.
--variable_map_output_fileMAPFILE
Save the serialized version of the variable renaming map produced to MAPFILE.
--warning_levelLEVEL
Specify the warning level to use.
Values: QUIET, DEFAULT, VERBOSE.
--warnings_whitelist_fileLISTFILE
Suppress warnings listed in LISTFILE. Each line should be of the form <file-name>:<line-number>?
<warning-d escription>
WarningClasses
The jscomp_error, jscomp_warning, and jscomp_off flags require as a parameter a WARNCLASS warning class
name. The following names are valid warning class names:
• accessControls
• ambiguousFunctionDecl
• checkRegExp
• checkTypes
• checkVars
• const
• constantProperty
• deprecated
• duplicateMessage
• es5Strict
• externsValidation
• fileoverviewTags
• globalThis
• internetExplorerChecks
• invalidCasts
• misplacedTypeAnnotation
• missingProperties
• nonStandardJsDocs
• suspiciousCode
• strictModuleDepCheck
• typeInvalidation
• undefinedNames
• undefinedVars
• unknownDefines
• uselessCode
• visibility
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